Tongue-switch.



PATENTED FEB. 12, 1907.

E. B. ENTWISLB.

TONGUE SWITCH. APPLICATION FILED APR. 11,

k. w a TM m ME m N I f. I 8 m m 1 w L w R W UNTTED STATES PATENT ASSIGNOR TO THE LORAIN STIFEL OF PENNSYLVANIA.

COMPANY, A CORPORATION TONGUERBWTTCH.

Specification of Letters Patent,

Patented Feb. 12, 1907.

Application filed April 11 l 1906. Serial No. 311,049.

To aZZ whom it may concern.-

Be it known that I, EDWARD BRADBUR-Y ENTwIsLE, of Johnstown, in the county of Cambria and State of Pennsylvania, have invented a new and useful IUI' ZIOVGIHGDlJ in Tongue-Switches, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, which form a 13 art of this s' ieciiication.

lily invention has relation to certain new and useful imtrovements in that class of tongue-switches known as protected or armored heel switches.

Prior to my invention in this type of switch it has been customary to reduce the thick ness of the tongue at the heel portion thereof an amount equal to the thickness of the {late or the thickness of the metal above the heel of the tongue.

The object of my invention is to reinforce the heel of the tongue without adding to the thickness of the tongue throughout its length.

Another object of this invention is to relieve the strain on the rivetoin by throwing a portion of the strain on the lower face of the heel of the tongue.

Viith these objects in View my invention consists in the novel construction, arrangement, and combination of f. arts, all substantially as hereinafter described, and pointed out in the ap iended claims, reference being had to the accompanying drawings, in Which Figure 1 is a plan view of a switch embody Fig. 2 is an enlarged ilan view of a portion of the switch. Fig. 3 is a sectional view on the line 3 3 of Fig. 2. Fig. 4 is a sectional view on the line 4 4 of Fig. 3.

A is the body portion of the switch, having the depressed portion a a, the opening in the body of the switch to receive the heel of the tongue, and a is a drain for the o iening a.

B is the tongue, the heel having 'gtortion Z), which is at an angle to the body of the tongue, the under side of the heel resting on the face a.

D is the rivet-11in, having the 'rooved head (1. '1 his in D is tlaced at right angles to the 1ng my invention.

heel of the tongue, thereby throwing the top of the orifice at a greater distance to the rear of the point a without lengthening the heel of' the tongue. Projecting longitudinally from the orifice d, in which the head (Z of the rivet-13in is seated, is a slot d into which a bar may be inserted to engage the groove in the head of the iivotin to withdraw the 11in.

As can be seen by reference to Fig. 3, a por tion of the forward strain will be against the face a, thereby relieving the tin of a portion of the load.

Having thus cescribed myinvention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a tongue-switch, a body structure having (lGliIGSSQtl floor portions forming the bed for the tongue, the bed for the heel of the tongue being at an angle to the bed for the body of the tongue, for the tur' iose set forth.

2. In a tongue-swit .1, a body structure having degressed floor ortion forming the bed for the body of the tongue, and a rear wardly and downwardly diverging portion forming the bed for the heel of the tongue.

3. In a tongue-switch, a body structure having a de tressed floor portion forming the bed for the body of the tongue, and a rearwardly and downwardly diverging orifice forming the seat for the heel of the tongue.

4. In a tongue-switch, a body structure having depressed floor portions at an angle to each other, a tongue seated thereon, the body of the tongue seated on one portion and the heel of the tongue on the other portion at an angle thereto.

5. In tongue-switch, a body structure having depressed floor portions at an angle to each other, a tongue seated thereon, the body of the tongue seated on one portion, and the heel of the tongue on the other portion, and a pivot-13in at right angles to heel of the tongue.

6. In a tongue-switch, a body structure having an overhung oliening diverging at an angle to the body of the tongue, in combination with a tongue having its heel portion at signature in gresence of two witnesses.

EDWARD BRADBURY EN'IWISLE.

Vfitnesses:

L. OCONNELL, H. W. SMITH. 

